Suci Rahayu, D., and E. Sulistyowati. “Effect of Pollen Feed on Parasitization and Predatism of Cephalonomia Stephanoderis OnHypothenemus Hampei”. Pelita Perkebunan (a Coffee and Cocoa Research Journal), Vol. 30, no. 1, May 2014, doi:10.22302/iccri.jur.pelitaperkebunan.v30i1.194.